Easton Cycling’s wheelset line is impressive, but if it has a weakness, it’s been the durability of the M1 rear hub, which can cycle through bearings at a prodigious rate when its preload adjuster comes loose. That’s why Easton Cycling recently introduced a hub upgrade kit for the M1 rear hubs used in EC90 XC, EA90 XC, EC70 Trail, Haven, Haven Carbon, Havoc and EA90 XD wheels.
The Bearing Spacer Kit will be available late February 2013, free of charge for
existing M1 rear hubs. The kit is included as a running change in all M1 hub-equipped rear wheels shipped after mid-February.
"Adding this Bearing Spacer dramatically improves bearing durability and eliminates the side-to-side play associated with an unthreading preload adjuster,” said Easton Cycling Brand Manager Dain Zaffke.
How do you know if your hub is compatible with the spacer upgrade kit? How do you actually install the thing? Easton has posted a comprehensive video detailing everything you need to know. Check it out below.
If you think you need the bearing upgrade kit (just check that video out to verify if you have a hub that’s compatible with the kit), you can pick one up from your local bike shop or order one yourself online at eastoncycling.com.